Schweitzer Engineering Laboratories SEL-700G Series, Instruction Manual

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4.124
SEL-700G Relay Instruction Manual Date Code 20170814
Protection and Logic Functions
Group Settings (SET Command)
Settings
DIR1 and DIR2 Overcurrent Element Direction Settings.
Table 4.33
shows the overcurrent elements that are controlled by each level direction
setting. Table 4.34 shows the Relay Word bits associated with all the X-side
and Y-side overcurrent elements with and without directional control across
the different SEL-700G models. Note in Table 4.33 that all the time-
overcurrent elements (51_T elements) are controlled by the DIR1 level
direction setting. Figure 4.83, Table 4.84, Figure 4.89, and Figure 4.90 show
the logic implementation of the control listed in Table 4.33.
Table 4.32 Directional Control Settings Not Made for Particular Conditions
Settings hidden/not made: for condition:
50PDIRP Always hidden (X side), ELOADY := Y (Y side).
50GFP, 50GRP, a0 setting ORDER does not contain V or I
Z0F, Z0R, Z0MTA setting ORDER does not contain V or I
ORDERX := U setting EDIRX := AUTO
Z0FX := -0.10, Z0RX := 0.10 setting ORDERX := U
Table 4.33 Overcurrent Elements Controlled by Level Direction Settings DIR1X, DIR2X, DIR1Y, and DIR2Y
a,b
Level
Direction
Settings
Phase Residual-Ground Negative-Sequence Neutral-Ground
DIR1m
67PY1P (Figure 4.54)
67PY1T (Figure 4.54)
51PYP(Figure 4.58)
51PYT (Figure 4.58)
67Gm1P (Figure 4.53 and Figure 4.54)
67Gm1T (Figure 4.53 and Figure 4.54)
51GmP (Figure 4.61)
51GmT (Figure 4.61)
67QY1 (Figure 4.54)
67QY1T (Figure 4.54)
51QYP (Figure 4.59)
51QYT (Figure 4.59)
67N1P (Figure 4.56)
67N1T (Figure 4.56)
51NP (Figure 4.60)
51NT (Figure 4.60)
DIR2m
67PY2P (Figure 4.54)
67PY2T (Figure 4.54)
67Gm2P (Figure 4.53 and Figure 4.54)
67Gm2T (Figure 4.53 and Figure 4.54)
67QY2P (Figure 4.54)
67QY2T (Figure 4.54)
67N2P (Figure 4.56)
67N2T (Figure 4.56)
a
Corresponding overcurrent element figure numbers are in parentheses.
b
m = X or Y.
Table 4.34 Relay Word Bits Associated With X-Side and Y-Side Overcurrent
Elements With and Without Directional Control Across Different SEL-700G
Models
(Sheet 1 of 2)
Elements
Models
700G0 700G0+ 700G1 700G1+ 700GT 700GT+ 700GW
50Pm1P X X X and Y X and Y X X and Y
50Pm1T X X X and Y X and Y X X and Y
50Pm2P X X X and Y X and Y X X and Y
50Pm2T X X X and Y X and Y X X and Y
50Pm3AP X X X and Y X and Y X X and Y
50Pm3AT X X X and Y X and Y X X and Y
50Pm3BP X X X and Y X and Y X X and Y
50Pm3BT X X X and Y X and Y X X and Y
50Pm3CP X X X and Y X and Y X X and Y
50Pm3CT X X X and Y X and Y X X and Y